condition mean min max Sterile Leaflet 2.71529 0.0 8.14587 Fertile Leaflet with Sori 0.06787533333333333 0.0 0.203626 Primary Rachis 0.31058366666666665 0.0 0.931751 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0